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Dear list,I use Cygwin64 for a long time and everything went well. However, after one setup.exe update, the command substitution (`foo`) is broken on bash.
How to reproduce: $ echo "===`echo 123`===" ===123=== $ echo "===`echo 123 | cat`===" ===123=== $ A=`echo 123`; echo "===$A===" ===123===$ A=`echo 123 | cat`; echo "===$A===" #<-- This one breaks (returned empty string)
====== $ A=`echo 123 | cat`; $ echo "===$A===" ===123=== $ A=$(echo 123 | cat); echo "===$A===" ====== $ dash $ A=`echo 123 | cat`; echo "===$A===" #<-- Did not occur on other shells ===123=== $ exit $ ash $ A=`echo 123 | cat`; echo "===$A===" ===123=== $ exit $ ssh a-linux-server $ A=`echo 123 | cat`; echo "===$A===" #<-- Linux doesn't have problem either ===123=== $ exitThis bug also occurs on another machine (win10 x64). And chere(1) is influenced by the bug and rendered unusable (ver 1.4 L613: KEY_ELEMENTS=`echo $1 | sed "s?/? ?g"`).
Anyway the cygcheck.log is attached. Additionally cygcheck complains about a cygheap base mismatch. This is a new-installed windows 7 x64 and I double confirmed there's only one cygwin1.dll on my computer.
2 [main] cygcheck (2556) C:\cygwin64\bin\cygcheck.exe: *** fatal error - cygheap base mismatch detected - 0x180302408/0x22D2408. This problem is probably due to using incompatible versions of the cygwin DLL.
Search for cygwin1.dll using the Windows Start->Find/Search facilityand delete all but the most recent version. The most recent version *should*
reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Rebooting is also suggested if you are unable to find another cygwin1.DLL.I'm not sure if it is a bug or my configuration problem, and whether it is filed or not. Please help with it.
Best Regards, Tydus
Attachment:
cygcheck.out
Description: Text document
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